行业组件数据 · 2026

输入耦合器

Input coupler is a waveguide component that efficiently transfers electromagnetic energy from an external source into an accelerating waveguide system.

技术定义与适配语境
典型 输入耦合器 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

An input coupler is a critical microwave component in particle accelerator systems that couples electromagnetic power from an external radio frequency (RF) source into the accelerating waveguide structure. It serves as the interface between the power generation system and the accelerating cavity, ensuring optimal energy transfer with minimal reflection and power loss. The component is designed to match the impedance between the external transmission line and the waveguide, maintaining the required electromagnetic field distribution for particle acceleration.

组件规格

定义
An input coupler is a critical microwave component in particle accelerator systems that couples electromagnetic power from an external radio frequency (RF) source into the accelerating waveguide structure. It serves as the interface between the power generation system and the accelerating cavity, ensuring optimal energy transfer with minimal reflection and power loss. The component is designed to match the impedance between the external transmission line and the waveguide, maintaining the required electromagnetic field distribution for particle acceleration.
工作原理
The input coupler operates on the principle of electromagnetic coupling and impedance matching. It typically uses an antenna or coupling loop that extends into the waveguide cavity, creating an electromagnetic field that excites the desired resonant modes within the accelerating structure. The coupling strength is carefully designed to achieve critical coupling, where the power transferred into the waveguide equals the power dissipated within it, maximizing energy transfer efficiency while minimizing reflected power.
材料
High-purity oxygen-free copper (C10100/C10200) for RF surfacesstainless steel (304/316) for structural componentsaluminum alloys for non-critical partsand ceramic (alumina or beryllia) for vacuum windows and insulators.
VSWR
<1.1:1
Vacuum Rating
<10^-9 Torr
Cooling Method
Water cooling with deionized water
Power Handling
Up to 50 MW peak, 500 kW average
Coupling Factor
0.8-1.2 (adjustable)
Frequency Range
2.856 GHz (S-band) or 5.712 GHz (C-band)
Temperature Range
-20°C to +80°C
标准
ISO 9001ISO 14001DIN EN 50129IEC 61312

行业分类与别名

输入耦合器 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Improper vacuum sealing at flange connections->Vacuum degradation leading to RF breakdown and system shutdown->Implement double O-ring seals with helium leak testing, use copper gaskets for ultra-high vacuum applications
Thermal expansion mismatch between materials->Mechanical stress leading to cracks or vacuum leaks->Use compatible thermal expansion materials, incorporate expansion joints, implement active cooling systems
RF multipacting at specific power levels->Electron multiplication causing vacuum breakdown and power reflection->Design with multipacting suppression features, implement conditioning procedures, use non-magnetic materials

工业生态与工程逻辑

0
RF arcing at high power levels
1
Vacuum leaks at coupling interfaces
2
Thermal stress from high power dissipation
3
Impedance mismatch causing power reflection
4
Mechanical vibration affecting coupling stability

合规与检测

tolerance
±0.05 mm for critical dimensions, ±0.1° for angular alignment, surface roughness Ra < 0.4 μm for RF surfaces
test method
Vector network analyzer (VNA) measurements for S-parameters, vacuum leak testing with helium mass spectrometer, high-power RF testing with dummy loads, thermal imaging for heat distribution analysis

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来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the primary function of an input coupler in an accelerating waveguide?

The primary function is to efficiently transfer electromagnetic energy from an external RF source into the accelerating waveguide while maintaining impedance matching and minimizing power reflection.

How is the coupling strength adjusted in input couplers?

Coupling strength is typically adjusted mechanically by changing the penetration depth of the coupling antenna or loop into the waveguide cavity, or electrically using tuning elements like stub tuners or movable shorts.

What materials are commonly used for input coupler construction?

High-purity copper for RF surfaces due to excellent conductivity, stainless steel for structural integrity, and ceramics for vacuum windows and electrical insulation.

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初步技术归类
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URN:CNFX:ME:UNIT:INPUT_COUPLER